Eyeglass-mounting.



' J. ROSENBLATT.

EYEGLASS MOUNTING.

APPLICATION FILED JULY27,191 1.

Patented Apr. 29, 1913.

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Mme/W01? dose bk Fosealblaif er A ATTORNEY UNITED snares PATENTorator...

JOSEPH ROSENBLATT, or PROVIDENCE, nnonn ISLAND.

EYEGLASS-MOUNTI'NG.

pecification of Letters Patent,

Application filed .Tuly 27, 1911. Serial No. 640,917-

To all whom. it may concern:

Be it known that I, JOSEPH ROSENBL.-.\T1,

a. citizen of the United States, residing at Providence, in the countyof Providence and'State of Rhode Island, have invented certain new anduseful. Improvements in Eyeglass-Mountings, of which the following is aspecification, reference beinghad therein to the accompanying drawing.

This invention relates to eyeglass mountings' of the class in whichv thegrips are moved toward the nose by resilient means and are separated bymanually operable portions, and the object of the invention is toprovide simple andeffective means whereby the different styles of lensclamps may be rendered easily removable from the bridge member andinterchangeable, and to form an.

interlockin key or spur on the bridge member adapte to enter acorresponding recess in the lens clamp whereby when these members arebolted'together'they are rigidly held and one cannot move upon theother.

A further object of the invention is to provide a. stud which performsthe function of bolting the members togetherand at the same time servesthe purpose of a pivot post on which the nose grips may'swing.

With these and other objects in view, the

-' locking spur on the bridge member engaging the correspondingly shapedaperture in the lens bracket. Fig. 3- shows a lateral offset connectflto the-bridge member. Fig. 4- shows a vertical offset connected to thebridge member.

Referring to the drawings, 1 designates the bridge member which isformed separate and independent from the rest of the mount-' inghaving'the usual archand being also provided with enlarged and flattenedend portions 2-.-2, eachhaving a hole 3- for the reception of thefastening bolt hereinafter described. -An outwardly extending tongue orspur 4 is formed on the outer edge of each enlarged portion 2, said spurbeing ratentea'a r,"zeile'is.

preferably formed tapering, wedge-shaped 2.;

or having converging side walls 5-5.

The lens clamp members .6 are formed separate and independent .of-the,brid member and are provided withthe-usua'l fork portions 7 betweenwhich the lens-8 is secured by means of the screw .9. ,,Each' clamp isprovided with anoutwardlya-em tending ear 10 corresponding; in size andshape and adapted to register .with the enlarged portions 2 ontheends-of;the brid e. member This ear is pierced and p'refrab ythreaded for the reception. of-' the;bolt aor securing stud 11.Each'lens clamp is pro f vided with a' recess 12 preferably havin'gdiverging sidewalls, see Figs. 2 and, 3, into which the correspondinglywed e-shaped spur 4. on the bridge member is adapted to fit tightly.Each lens clamp may be secured to.its end of-the bridge member by meansof a small screw or bolt such as that illustrated at 13, in Fig. 1, butI referably. use a stud illustrated at 11 in *ig; 1 the same beingthreaded through the ear or the lens clamp and provided. with a checknut 14 at its lower'end said stud having an enlarged bearing 15 above toserve as a pivot post on which the nose grip (not shown) may SWlIlg.

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It is understood that the essential reason for removably securing thelens clamps to the bridge member is so that the-different styles of lensclamps, such as the lateral offset either in or out, or the verticalofi'set either up or down of all dimensions may be used wherebyuniversal adjustment of the,

lens may be obtained to suit all requirements.

It is found in practice almost impossible in eye glass mountings of thischaracter to connect and hold the lens clamp firmly in position by theuse of a bolt alone, without the employment of additional means forkeying the two members together. I have therefore devised this simple,effective and inexpensive locking method which is that of providing awedge-shaped spur 'or tongue adapted to fit into acorrespondingly shapedrecess in the opposite member whereby when a the two members are placedto other this spur naturally enters and we ges itself firmly into itsrecess so that when the binding bolt is passed through and-set upagainst the engaging ears the two members'are as rigidas though theywere formed in one. An advantage of this construction aside from itsgreat holding capacity is that-both the spur and the recesses may beformed by die work without the necessity of further finishing the wallsof either in order to make them fit and hold perfectly.

I claim:

1. An eye glassmounting comprising a bridge member, a-pair of lens clampmembers, an integral interlocking tapering spur on one of said membersengaging a corresponding recess in the opposite member and ascrew forsecuring a lens clamp to each end of said bridge said screw also servingas a pivot post on which the nose grips may swing.

2. An eye glass mounting comprising a of said bridge said screw alsoserving as a pivot post on which the nose grips may swing.

3, An eye glass mounting comprisin a bridge member having enlarged andflattened ends, a lens clamp having a corre spondingly formed ear, astud for securing a lens clamp to each endof said bridge, said stud alsoserving as a pivot poston which nose grips may swing, a taperinginterlocking spur integral with and project-"' ing from each end ofsaidbridge into a correspondingly formed recess in said lens clampwhereby the latter are firmly held from turning on the former.

In testimony whereof I afiix my signature in presence of two witnesses.

JOSEPH ROSENBLATT.

Witnesses:

HOWARD E. BARLow,

I. OGDEN.

